产品概览
TLP184 from Toshiba is a phototransistor photocoupler with 3750Vrms isolation and high CTR (50-300%) in compact MFSOP-6. 8mm creepage meets IEC safety. GaAlAs LED and silicon phototransistor for fast response.
工作原理
GaAlAs infrared LED emits light detected by phototransistor. LED current (IF) causes proportional collector current (IC = IF x CTR). Optical coupling provides electrical isolation with no electrical connection.
Pin Description
| 针脚 | 名称 | 功能 |
|---|---|---|
| 1 | 阳极 | LED anode |
| 2 | 阴极 | LED cathode |
| 4 | 发射器 | PT emitter |
| 5 | 收藏家 | PT collector |
| 6 | 基地 | PT base (optional) |
应用
- PLC digital I/O isolation
- SMPS feedback loop
- Motor drive signal isolation
Alternative Models
| 制造商 | 部件编号 | 说明 |
|---|---|---|
| 东芝 | TLP185 | Higher CTR grade |
| Vishay | SFH617A-3 | Similar photocoupler |